Duct Liner
KCL

KCL Ultra

Acoustics
Fire resistance
HVAC
Sustainable
KCL Ultra [NRC:0.8 @ 25mm] is used to line air conditioning ducts, walls and/or ceilings of acoustically sensitive areas to provide efficient sound insulation for any variety of structure, and/or sensitive facilities as home theaters or studios, curtain walls.
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Key Facts

  • Superior acoustic performance
  • Excellent thermal performance
  • Does not promote microbial growth 
  • Excellent fire safety
  • Environmentally friendly: made from abundantly available, non-strategic materials.
  • Easy to cut and install, minimum wastage on-site Comparatively light in weight
  • Dimensionally stable, rigid and with higher mechanics 
  • Complies with international standards

Product description

KCL Ultra is made of glass wool slabs and rolls faced with durable glass fabric and KCL Ultra products have higher mechanics. Glass fabric installed in contact with the airstream, providing high acoustic absorption. The inside facing ensures a high acoustic absorption. Glass fabric facing constitutes a smooth surface, with high resistance to tearing (cleanable by brushing) with No fibers in airstream.

KCL Ultra range are manufactured from inorganic chemically biosoluble materials and do not include anything that would have effect on corrosion and shall not facilitate microbial growth.

Facings: KCL Ultra is faced with a black, strong, durable, dimensionally stable woven glass fabric. 

Acoustical Performances

KCL Ultra is especially designed to provide exceptional sound absorption to acoustically sensitive environments and/or equipments as air-conditioning equipments, auditoriums, theatres, studios, acoustical building assemblies, curtain walls.

Thickness (mm) Absorption Coefficient of one-third octave band center frequencies (Hz)
125 250 500 1000 2000 4000 NRC
15 0.05 0.12 0.29 0.51 0.68 0.8 0.5
25 0.16 0.32 0.82 1.02 1.05 1 0.85
50 0.3 0.85 1.03 1.07 1.06 1 1

Test in accordance with ASTM C423 using Type A mounting as per ASTM E795. These are typical values subject to normal manufacturing and testing variances.

Technical description

Characteristic

Symbol

Unit

Quantities and measured values

Standard

Thermal Conductivity

T

(°C)

25

 

ASTM C518

l

( W /m·K )

0.031

Density

Rolls

ρ

(kg/m3)

48  (Tolerance: ± 15%)

ASTM C167

Dimensions

L, W, T

(m)

(6.0 – 25.0), (1.2), (0.012 – 0.050)

Density

Slab/Boards

ρ

(kg/m3)

48  (Tolerance: ± 15%)

ASTM C303

Dimensions

L, W, T

(m)

(1.0  - 2.4), (1.2), (0.015 – 0.120)

Facing

Faced with Black Glass Fabric (BGF)

 Reaction to Fire Class (Unfaced)

 Euro-class A1

Non-combustible

EN 13501-1

ASTM E136

Surface Burning Characteristics

-Flame Spread Index

-Smoke Developed Index

 

≤ 25

≤ 50

ASTM E84

Water Vapour Sorption

(%)

< 1 (by volume)

ASTM C1104

Maximum Service Temperature 

Min.

Max. (Fiber)

Max. (Facing)

°C

 

-50

+232

+100

ASTM C411

Fungi Resistance

Do not promote fungi growth

ASTM C1338

Stress Corrosion to Austenitic Stainless Steel.

No Cracking observed

ASTM C871

Corrosiveness to Steel

No Corrosion

ASTM C665

Ozone Depletion Potential (ODP)

‘0’

-

Global Warming Potential (GWP)

<5

-

Rigidity

Semi-Rigid/Flexible

ASTM C1101

Noise Reduction Coefficient (NRC Value)

0.50 – 1.00

(Depends upon thickness)

ASTM C423

Standard Compliance

ASTM C1071 Type I [Rolls]

ASTM C 1071 Type II [Slabs]

Product variations

Articles information
Name NRC Density [kg/m3] Facing Thml resistance Packaging (Slab) Thickness (mm) Width (m) Lenght (m)
NameKCL Ultra NRC1.00 Density [kg/m3]48 FacingBlack Glass Fabric Thml resistance1.61 Packaging (Slab)6 Thickness (mm)50 Width (m)1 Lenght (m)1.2
NameKCL Ultra NRC0.8 Density [kg/m3]48 FacingBlack Glass Fabric Thml resistance0.81 Packaging (Slab)1 Thickness (mm)25 Width (m)1.2 Lenght (m)20
NameKCL Ultra NRC1.00 Density [kg/m3]48 FacingBlack Glass Fabric Thml resistance1.61 Packaging (Slab)1 Thickness (mm)50 Width (m)1.2 Lenght (m)10
NameKCL Ultra NRC0.8 Density [kg/m3]48 FacingBlack Glass Fabric Thml resistance0.81 Packaging (Slab)12 Thickness (mm)25 Width (m)1 Lenght (m)1.2
Notes

Other thickness, size or densities may be available on request